On 2021-06-02 20:37, David Hildenbrand wrote:
Long story short, using get_online_mems() looks wrong.
Maybe the current lightweight reader/writer protection does serve a
purpose?
It was too nice and easy to be true I guess.
Yeah, I missed the point that blocking might be an issue here, and
hotplug operations can take really long, so not an option.
I must have switched my brain off back there, because now it is just too
obvious.
Then I guwmess that seqlock must stay and the only thing than can go is
the pgdat resize lock from the hotplug code.
Meh.
--
Oscar Salvador
SUSE L3
